3636700784065 has 16 divisors (see below), whose sum is σ = 4431849951168. Its totient is φ = 2864488245696.

The previous prime is 3636700784053. The next prime is 3636700784081. The reversal of 3636700784065 is 5604870076363.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 3636700784065 - 2¹⁷ = 3636700652993 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3636700783997 and 3636700784015.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20764242 + ... + 20938651.

It is an arithmetic number, because the mean of its divisors is an integer number (276990621948).

Almost surely, 2^{3636700784065} is an apocalyptic number.

It is an amenable number.

3636700784065 is a deficient number, since it is larger than the sum of its proper divisors (795149167103).

3636700784065 is a wasteful number, since it uses less digits than its factorization.

3636700784065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41703168.

The product of its (nonzero) digits is 15240960, while the sum is 55.

The spelling of 3636700784065 in words is "three trillion, six hundred thirty-six billion, seven hundred million, seven hundred eighty-four thousand, sixty-five".